Fountain pen



.J. C. ALFORD FOUNTAIN PEN April so, 1929.

Original Filed 4March 5. 1925 Quiroz,

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Patented Apr. 30, 1929.

UNITED sTATEs JOSEPH CHURCHILL ALFORD, OF HABEN, MISSISSIPPI.

FoUN'rAIN PEN.

Original application led Haren 5, 1925, Serial No. 13,222. Divided and this application flled larok 8,

` 1926. VSerial No'. 92,017.

This invention relates to fountain pens and is more especiall a division of my co-pending application ed March 5, 1925, Serial No. 13,222, patented Apiil 13, 1926, Number @ne of the objects of the invention is to provide an improved pump or piston means whereby the pen can be quickly filled, it being possible readily to house the pump portion after the llingoperation and without danger of expelling the ink from the pen.

Another Aobject is to provide a structure the pump or piston mechanism-of which can be utilized as a convenient means for cleaning the pen.

A still further object is to provide filling mechanism so constructed as to prevent leakage under any conditions.

With the foregoing andother objects in 20, view which will appear as the description proceeds, the invention resides in the conibination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings the preferred forni of the invention has been shown.

In said drawings, Figure l is a view in longitudinal section through my improved pen showing the pen projected and in operative position Figure 2 is a view partly in elevation and partly in longitudinal section showing the pen withdrawn and covered by its shield;

Figure 3 is a fragmentary view showing the casing and the shield in section and the other parts in elevation;

Figure 4 is a fragmentar view showing the casing, barrel and shiel in section and the pen holder in elevation;

Figure 5 -is a fragmentary view in longiv tudinal section showing. the manner of bringing the piston elements into proper assemblaffe- Figiire 6 is a perspective view of the piston elements when assembled;

Figure 7 is a perspective view of the nib shield;

Figure 8 is a view in transverse section on the line 8-8 of Figure 2;

Figures 9 and 10 are views in section on the lines 9-9 and 10-10, respectively, of

Figure 1;

Figure l1 is a view in section through the piston ring.

l represents the casing of my improved fountain pen. This casing 1 is cylindrical throughout the greater portion of its length but at its forward end is tapered as shown at 2. The casing l encloses an ink barrel 3 which is of vgeneral cylindrical form and which has an annular flange 4 adjacent its rearl end. An externally threaded sleeve 5 fits the outer end of the barrel and is screwed into the casing, as indicated at 6, and against the flange 4 so as to hold the barrel against longitudinal movement but permit it rotary movement.

A` stuffing box 7 constituting a threaded plug, is screwed into the end of the barrel 3, as shown at 8, and a milled collar 9 is screwed onto the end of the'barrel 3, abuts against the casing 1 and is fixedly secured b a jam screw 10 pro'ected through the col ar and against the arrel; The collar 9 has an internally threaded portion 11 to receive an externally threaded plug 12, the latter being lalso milled or roughened to facilitate its turning. This plug 12 is iixedly secured to a piston rod 13 which projects through the stuiiing box 7 into the ink barrel, as shown.

The forward end of the ink barrel has a restricted ink passage l14 into which the reduced end 15 of a longitudinally grooved feed bar 16 is guided. The barret 3 has at its forward end a cylindrical extension 17 enclosing the inner portion of the feed bar and also receiving a sleeve 18 around the feed bar. The pen 19 is securely held against the feed bar when projected between the saine and the sleeve 18, as clearly shown.

On the extreme inner end of the rod 13 an enlargement 20, constituting a valve, is provided and is adapted when the plug12 is screwed all the way in to close against a seat 21 and prevent the passage of the ink through the restricted portion 14.

The end of the rod 13 adjacent the valve 20 is screw-threaded as shown at 22, and on this threaded `portion 22 a spider 23 has screwthreaded engagement, and between the spider 23 andthe valve 20 a piston ring 2d is mounted which lits the barrel 3 but hasv a central opening necessarily larger than the rod 13.

On. the inner end of the stuiiing box 7 I provide lugs 25 between which projections26 on the spider 23 are adapted to be positioned to hold the spider against turning movement which receive laterally projecting movement of the shield, but said ring is by manual manipulation of the collar, 9.l

also formed with inwardly projecting keys 30 which engage in spiral grooves 31 in the cylindrical barrel extension 17 so that when the barrel is turned a longitudinal movement is imparted to the ring 29,. This ring 29 has a pair of forwardly projecting spring arms 32 vcarrying semi-conical plates 33 at their forward ends, which when projected forwardly engage the tapering forwardend of the casing 1 and move toward each other to enclose the pen, as shown in Figure 2.

The sleeve 18around the pen and pen holder is formed with a key or keys 34 to move in spiral grooves 35 in the c lindrical barrel extension 17 so that when t e barrel isrevolved the pen holder and the nib are projected or withdrawn as the case may be. l

The grooves 31 are opposit-ely coiled so that when the pen is projected, the shield A is withdrawn andf when the pen is withdrawn, 'the'A shield A is projected. Hence, when the pen is in its outward position, the shield is in the casing, and when the pen is moved inwardly the shield functions to cover the pen and the forward end of the nib holder. .l

Turning movement is imparted to the barrel 'When the pen is not desired for use the'valve :20 can be moved against its seat 21 to prevent the possibility of leakage.

To fill the pen the operation is as follows:

. The rod 13 is drawn outwardly which will cause the enlargement' 20 to engage the ring 24 and move it with the spider 23, forming` a suction plunger which will suck the ink into the barrel. When it is desired to clean out the barrel and impart a reciprocating movement to the plunger, the operation wi l be as follows: The plug 12 is unscrewed to release it from the cap 9, and therod 13 is drawn outwardl until the spider 23 is against the inner end o the stuliing box 7 when the lugs 26 will engage the lugs 25 and the spider will be held against turning movement., When the rod 13 is drawn outwardly as explained, the threaded portion 22 will slide into the bore in the stuif- -ing box which is not screw-threaded. While in this position the rod 13 is turned so as to screw the rod through the spider and'draw the enlargement 20 again-stiche ring 2st-and compress the ring between the enlar ements andthe spider, thus forming a' comp ete piston or plunger. `wardly so as to move the piston in a direction The rod is then moved into' expel the air, which is a movement toward` the nib end of the pen.

In filling, the pen is inserted in the ink and the piston is drawnrearwardly, sucking the ink into the barrel and again bringing the .is-V

ton assemblage to the position shown .in 1gure 5. vThe pen is projected or withdrawn by turnin the cap or collar 9, and, as above explaine when the pen and pen holder are withdrawn the shield moves so as to enclose the pen, and when the pen is projected the shield is withdrawn through the medium of the keys and grooves such as above explained. The sleeve 18 has laterally projecting pins 40 which move in longitudinal grooves 41 in the casing 1 to prevent turning of the sleeve.

`lihat is claimed is:

1. A fountain pen, includin a casing, an .ink lbarrel in the casing, a fixe member closing the end of the ink barrel, a rod projecting `through said fixed -member and having a adapted to hold the s ider against turning movement when the ro is withdrawn so as to allow the rod to be turnedand move theenlargement toward the spider to clamp the ring an form a piston assemblage.

2. ,A fountain pen including a casing having an ink barrel, there being an ink outlet at one end of the barrel, a rod slidably and rotatably mounted in the other end of the barrel, an enlargement at one end of the rod constituting a valve for closing the outlet, said rod having a screw threaded portion adjacent the enlargement, a member constantly enga ed by the screw threaded portion and movagble with the rod, cooperating means upon said member and the closed end of the barrel for holding said member against rotation while in contact with the end of the barrel,'said rod .constituting means' for moving the member linto'and out of engagement with said end of the barrel, a ring loosely mounted on the threaded portion of the rod between said mempassage surrounded by a valve seat, a closurel for one end .of the barrel, a rod mounted to slide and rotate within the closure, there being an enlarged screw threaded portion on the rod adjacent the valve, a piston ring loosely mounted on said threaded portion, a. spider engaging the threaded portion of the rod, said spider and valve constituting means for limiting the movement of the piston rin longitudinally of the rod, lugs upon the spi er, and lugs upon the closure of the barrel said rod being shiftable longitudinally to rin the lugs of the spider into engagement wit the 10 lugs on the closure and being rotatable While said lu are in engagement, to shift the s ider a ong the threaded portion of the rod, t iereby to clamp the iston ring against or release it from the vva. ve, said valve piston ring and spider, when clam together, `oooperating to form a tight piston assemblage. In testimony that I claim the foregoing as my own, I have hereto aixed my signature.

vJOSEPH CHURCHILL ALFoRD. 

